#include <stdio.h>
int main(void)
{
 int a,b;
 printf("enter two numbers:");
 scanf("%d %d",&a,&b);
 printf("add:%d\n",add(a,b));
 printf("sub:%d\n",sub(a,b));
 printf("mul:%d\n",mul(a,b));
 printf("div:%lf\n",div(a,b));
 return 0;
}

